Charles Darwin's theory of natural selection changed many views of life on this Earth. However, Darwin presented of his theory after seeing many sights and gathering much evidence. however, there were some problems with Darwin's theory. Most people in Darwin's time believed that the Earth was just thousands of years old. Unfortunately for Darwin, for natural selection to have created the diversity of life on Earth, an immense number of years were needed.
This was because most adaptions started with a single genetic mutation. The genetic mutation would then be passed down through offspring, letting the adapted organisms live longer while the others died out. While this may sound relatively quick, the fact is that it took one generation for the trait to spread to just half of the average litter size of the population. Depending on the speed at which reproduction happened and the size of the ppopulation, evolution of a single population could take anywhere from a thousand to a mimillion
This was because most adaptions started with a single genetic mutation. The genetic mutation would then be passed down through offspring, letting the adapted organisms live longer while the others died out. While this may sound relatively quick, the fact is that it took one generation for the trait to spread to just half of the average litter size of the population. Depending on the speed at which reproduction happened and the size of the ppopulation, evolution of a single population could take anywhere from a thousand to a mimillion
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